Archive image from page 224 of The cultivated evergreens; a handbook. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada cultivatedevergr00bail Year: 1923 ( INSECTS, DISEASES, AND INJURIES 153 Mechanical injuries should be avoided, for these open the way for the entrance of wood-rotting fungi. All wounds should be carefully cleaned out, disinfected, and coated with some such dressing as coal-tar or asphaltum (see under tree surgery). All fruiting bodies should be destroyed as soon after they b
Archive image from page 224 of The cultivated evergreens; a handbook. The cultivated evergreens; a handbook of the coniferous and most important broad-leaved evergreens planted for ornament in the United States and Canada cultivatedevergr00bail Year: 1923 ( INSECTS, DISEASES, AND INJURIES 153 Mechanical injuries should be avoided, for these open the way for the entrance of wood-rotting fungi. All wounds should be carefully cleaned out, disinfected, and coated with some such dressing as coal-tar or asphaltum (see under tree surgery). All fruiting bodies should be destroyed as soon after they begin to form as possible. This will not arrest the decay in the diseased individual, but will prevent the spores from infecting other trees. Other sporophores will be produced later and these should be consistently destroyed. In cases in which the value of the tree justifies the expense and when the decay is not too far advanced, the diseased wood may be removed. This should be done by a capable person using proper tree-surgical methods. Such treatments are expensive and it should always be remembered that it is now possible to transplant large trees at a comparatively low cost. Special treatment is necessary in the case of the root-rot caused by Armillaria mellea. If the disease is discovered in the early stages, there are reasonable chances that the tree may be saved. All the soil should be removed from the butt and main roots. The bark should then be removed from the butt with a sharp knife and all diseased roots traced out as far as possible, cut off and burnt. The exposed surfaces on the butt, including all scars caused by the removal of roots, should be sterilized with creosote and waterproofed with a good coating of tar or asphaltum before the soil is returned. It is advisable to leave a fair portion of the root system (about 19. Fruiting body of Armillaria mellea.
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Keywords: 1920, 1923, archive, bailey_l_h_liberty_hyde_1858_1954, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, conifers, drawing, evergreens, historical, history, illustration, image, new_york_the_macmillan_company_london_macmillan_co, new_york_the_macmillan_company_london_macmillan_co_ltd_, page, picture, print, reference, vintage
